Home / 5,470.50-8,211.22-2,878.90

Finding the Fourth Proportional to 5,470.50, 8,211.22 and 2,878.90

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Solution

The fourth proportional to 5,470.50, 8,211.22 and 2,878.90 is: 4,321.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.50 : 8,211.22 = 2,878.90 : x
  2. Step 2: Convert to fraction form
    5,470.50/8,211.22 = 2,878.90/x
  3. Step 3: Cross multiply
    5,470.50x = 8,211.22 × 2,878.90
  4. Step 4: Simplify right side
    5,470.50x = 23,639,281.26
  5. Step 5: Solve for x
    x = 23,639,281.26/5,470.50
  6. Step 6: Final answer
    x = 4,321.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.